The pointer of the automobile water thermometer is more suitable in the middle position. If it is lower than the middle position, it means that the engine has not reached the normal working temperature, and it is not recommended to drive the engine at high speed and heavy load at this time; If the pointer position is obviously higher than the middle position, it means that the engine load is too large, and measures such as turning off the extra load of the vehicle, downshifting the transmission and slowing down the engine should be taken to reduce the engine load.
The sign of the water thermometer is that there are two lines of ripples under the thermometer on the dashboard. There are two kinds of lights in the automobile water thermometer, green means low temperature and red means high temperature. The water thermometer is marked with the letters C and H. The pointer of the water thermometer indicates that the current water temperature is low and the pointer of the water thermometer indicates that the water temperature is high.
Coolant:
Coolant, the full name of which should be called antifreeze coolant, refers to the coolant with antifreeze function, which can prevent the coolant from freezing and cracking the radiator and freezing the engine block when parking in cold season.
However, we have to correct a misunderstanding that antifreeze is not only used in winter, but also used all year round. In the normal maintenance of automobiles, it is necessary to replace the engine antifreeze every year.